FLOWVIEW - JSON Parse Error [Syntax Error]

[phardy100]

Hi all

I am running cactiez and trying to get the flowview working.

In the flowview plugin I am getting the netflow data from my cisco router to enter the /var/netflow/flows directory however when I try view through the plugin I am getting the following error;


Open Flash Chart

JSON Parse Error [Syntax Error]
Error at character 0, line 1:

0:

[cigamit]

That error occurs when there is no data to display. You will need to figure out why there is no data first.

Did you add a new device to flow view?
After doing that, did you restart the flow-capture service?
Do you see data coming into /var/netflow/flows/<devicename>/ ?
Is the time on your router and cacti box the same (including timezone) ?

[mitra1]

hi !
i also see this error, im running this Fresh New CactiEZ with Plugin Management (Cacti Version: 0.8.8a, Plugin Architecture Version: 3.1)
i do get info , but somehow the files wento to :

here is my output :
/var/netflow/flows/netflow/flows/

IE:
/var/netflow/flows/netflow/flows/2012-11-23

in settings -- misc -- Flow Viewer -- Flows Directory i have : /var/netflow/flows/




[root@localhost ~]# netstat -an | egrep -i 2055
udp 0 0 0.0.0.0:2055 0.0.0.0:*

[root@localhost ~]# tcpdump -i eth0 port 2055
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
19:23:41.823451 IP rt-hsrp.com.54610 > 10.53.9.1.iop: UDP, length 1464
19:23:41.823495 IP rt-hsrp.com.54610 > 10.53.9.1.iop: UDP, length 1464


[root@localhost flows]# ls -la
total 76
drwxr-xr-x 3 root root 4096 Nov 23 08:32 .
drwxr-xr-x 3 root root 4096 Nov 22 16:33 ..
drwxr-xr-x 2 root root 65536 Nov 23 19:24 2012-11-23
[root@localhost flows]# pwd
/var/netflow/flows/netflow/flows

[root@localhost 2012-11-23]# ls -la | more
total 1320584
drwxr-xr-x 2 root root 65536 Nov 23 19:25 .
drwxr-xr-x 3 root root 4096 Nov 23 08:32 ..
-rw-r--r-- 1 root root 1047712 Nov 23 00:01 ft-v05.2012-11-23.000000-0500
-rw-r--r-- 1 root root 1337760 Nov 23 00:02 ft-v05.2012-11-23.000100-0500
-rw-r--r-- 1 root root 1145120 Nov 23 00:03 ft-v05.2012-11-23.000200-0500
-rw-r--r-- 1 root root 1182816 Nov 23 00:04 ft-v05.2012-11-23.000300-0500
-rw-r--r-- 1 root root 1040288 Nov 23 00:05 ft-v05.2012-11-23.000400-0500

pls help

[cigamit]

What "Directory" do you have set for your listener? This should not contain a full path.

[trungmv]

Hi,

I have same issue but when i added device on Listeners tab but can not saved here --> do not know

Using: cacti 0.8.8
spine: 0.8.8a
in Misc setting:
Flow Tools Binary Path: /usr/bin
Flow Tools Work Directory: /tmp
Flows Directory: /var/netflow/flows/completed
DNS Server: My DNS server

Any help is appreciate.

Regards,

[cigamit]

I have same issue but when i added device on Listeners tab but can not saved here

If you can't save a device on the listeners tab, then you most likely need to import the SQL tables.

[trungmv]

Hi cigamit,

I also reinstalled flows plugin but not fine.
When i check on mysql has existed 5 table of Flows but still can not saved device on Listener tab

Code: Select all

If you can't save a device on the listeners tab, then you most likely need to import the SQL tables.

When i import by manual as you mentioned but has error:


Could you please help me?

Regards,

[kride]

I have the same error. Anyone ?

[DQM]

Dear all,

I have also got the same issue on CactiEZ v0.7. I got the packages once run tcpdump on udp port 2055


I cannot see the graph (JSON Parse Error [Syntax Error] Error at character 0, line 1) and cannot delete any listeners and cannot see added schedule

I have searched but cannot find out the solution.

Could anyone help on this please?

Thank you,
DQM